Hi, thank you for your question. Just a bit more information to fully assist you:
-How old are the triplets?
-What are the exact arrangements in the order for his contact?
Thank you for your question
My name is ***** ***** I shall do my best to help you.
Given the involvement of Social Services you have no need to be concerned about returning the matter to court.
As a starting point you should move the handover away from your home and make it plain that if he does attend the house again you will call the police.
I would suggest that you offer contact with the boys at a local Contact Centre - for however many of your 10 year olds as wish to attend.
This will limit his ability to treat the boys differently
I suggest that you write him a letter setting this out and inform him that he is welcome to take the matter back to court if he wishes - at which point it is not impossible that ALL contact would be stopped.
I hope that this is of assistance - please ask if you need further details